Soot blower for boilers



April 1, 1941. E BLASDELL 2,237,044

SOOT BLOWER FOR BOILERS Filed oct. 21,- l19:59

Srwentor v 912; @md5/z Y n Gttornegs Patented Apr. 1, 1941 UNTTED STATES rTsuT orties SOOT BLOWER FOR. BOILERS Elgin Blasdell, Flint, Mich.

Application October 21, 1939, Serial No. 300,503

1 Claim.

This invention relates to soot blowers and particularly to the provision of means for blowing the soot from between the tubes of a tubular boiler.

The invention makes use of a steam pipe penetrating the wall of the boiler and having discharge jets or openings adapted to deliver steam under pressure between the tubes of the boiler to remove the soot.

An object of the invention is to provide means to xedly secure the steam pipe and thereby definitely lock the jets relatively to the boiler tubes.

Other objects and advantages will be understood from the description which follows.

In the drawing:

Figure 1 is a section through a boiler wall showing the boiler tubes therein and the steam pipe with the jets for cleaning the boiler.

Figure 2 is a view as seen from line 2-2 of Figure 1.

Figure 3 is a section on line 3--3 of Figure 2.

Referring by numerals to the drawing, a boiler wall is shown at 5 and within the boiler are the tubes 1. The space between the tubes accumulates soot for the removal of which there is provided means to deliver among the tubes steam under a pressure of perhaps 1'15 pounds per square inch.

To this end a steam pipe 9 extends through an opening II in the wall 5. The steam pipe 9 extends at right angles to the boiler tubes 1. The pipe 9 is suitably supported at the outer face of wall 5 by any convenient means designated on the drawing by numeral I3. At axially spaced positions in the steam pipe are openings or jets I5. The pipe 9 is so positioned that the jets or openings are located in the spaces between the boiler tubes. It these openings were closely adjacent the tubes the steam pressure might blow holes in the tubes.

The heat within the boiler tends to cause considerable relative mov-ement between the boiler tubes and the steam pipe 9 and this movement may be sulcient to cause the jets to be moved to a position adjacent the tubes and damage the latter as explained above.

To avoid the damage referred to there is shown, in accordance with this invention, means to prevent such movement of the steam pipe 9 relative to the boiler tubes. At I1 is a bracket. It is formed from two spaced side walls I9, with spaced upper and lower intermediate members 2I and 23 between the walls. The members 2 I and 23 may be secured to the side wall as by welding, the welding being indicated by numeral 25. The bracket I1 extends lengthwise of one of the boiler tubes and is secured also by Welding as indicated at 21. An anchor plate marked 29 is formed with a tongue 3| shaped t0 t between the side walls and between the members ZI and 23. The anchor plate has a U-shaped opening formed by a curved portion 33 of circular outline from which diverge upper and lower extensions 35 and 31.

A ring 39 with an intermediate groove 4I is placed over and secured to the blower pipe 9 in a selected position. The walls of the ring 39 adjacent the groove fit around the curvilinear base portion 33 of the opening in the anchor plate as shown in the drawing. A retainer or cap 43 is shaped to t between the extensions 35 and 31. It, too, has a curvilinear outline marked 45 to cooperate with a circular base part 33 and ts between the Walls forming the slot 4I. Suitable fastening means 41 secure the cap to the extensions 35 and 31 and complete the support for the steam pipe 9.

With this construction the pipe 9 is flxedly located relative to the boiler tubes and damage to the latter is avoided.

There is shown on the drawing at 5I a diagrammatic illustration of any suitable means whereby steam from a suitable source may be admitted to or cut off from the pipe 9. This invention is not concerned with the details of this valve control.

I claim:

For use with a. boiler having tubes, a steam pipe for cleaning said boiler extending into said boiler and having jets, supporting means for said blower pipe secured to one of said tubes, said supporting means including a bracket secured to said tube, an anchor plate carried by said bracket and a removable cap adapted to be secured to said anchor plate, said blower pipe carrying a grooved collar and said anchor plate and cap having cooperating curvilinear parts adapted to be received within the groove of said collar.

ELGIN BLASDELL. 

